WATERCOLORS: Varnish, storage, framing and shipping. Protect your watercolors!

Is it necessary to varnish watercolors? How should I frame them to display them? What is the best method to store them? and How are they shipped to our customers safely?
In this video tutorial I explain in detail how I take care of my watercolors once I have finished them to keep them in perfect condition.
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Music:
Epidemic Sound share.epidemic...
Other resources used:
Cottonbro studio video: www.pexels.com...
Video by Vladislav Zhelezniak: www.pexels.com...